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Examples, SDL2/SDL3: use SDL_GetWindowSizeInPixels() to create framebuffers. (#8761, #9124)

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+ cc #7433
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ocornut
2026-06-29 11:49:06 +02:00
parent 76f5be2749
commit c66d9a8190
4 changed files with 8 additions and 6 deletions
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4
docs/CHANGELOG.txt
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@@ -127,7 +127,9 @@ Other Changes:
- Uses `SetProcessDpiAwarenessContext()` instead of `SetThreadDpiAwarenessContext()`
when available, fixing OpenGL DPI scaling issues as e.g. NVIDIA drivers tends
to spawn multiple-thread to manage OpenGL. (#9403)
- Examples:
- SDL2/SDL3: use `SDL_GetWindowSizeInPixels()` to create frame-buffers. Fixes issues
with non-fractional framebuffer size on Wayland. (#8761, #9124) [@billtran1632001]
-----------------------------------------------------------------------
VERSION 1.92.8 (Released 2026-05-12)

4
examples/example_sdl2_vulkan/main.cpp
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@@ -386,7 +386,7 @@ int main(int, char**)
// Create Framebuffers
int w, h;
SDL_GetWindowSize(window, &w, &h);
SDL_GetWindowSizeInPixels(window, &w, &h);
ImGui_ImplVulkanH_Window* wd = &g_MainWindowData;
SetupVulkanWindow(wd, surface, w, h);
@@ -475,7 +475,7 @@ int main(int, char**)
// Resize swap chain?
int fb_width, fb_height;
SDL_GetWindowSize(window, &fb_width, &fb_height);
SDL_GetWindowSizeInPixels(window, &fb_width, &fb_height);
if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
{
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);

4
examples/example_sdl3_vulkan/main.cpp
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@@ -383,7 +383,7 @@ int main(int, char**)
// Create Framebuffers
int w, h;
SDL_GetWindowSize(window, &w, &h);
SDL_GetWindowSizeInPixels(window, &w, &h);
ImGui_ImplVulkanH_Window* wd = &g_MainWindowData;
SetupVulkanWindow(wd, surface, w, h);
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
@@ -477,7 +477,7 @@ int main(int, char**)
// Resize swap chain?
int fb_width, fb_height;
SDL_GetWindowSize(window, &fb_width, &fb_height);
SDL_GetWindowSizeInPixels(window, &fb_width, &fb_height);
if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
{
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);

2
examples/example_sdl3_wgpu/main.cpp
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@@ -155,7 +155,7 @@ int main(int, char**)
// [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppIterate() function]
// React to changes in screen size
int width, height;
SDL_GetWindowSize(window, &width, &height);
SDL_GetWindowSizeInPixels(window, &width, &height);
if (width != wgpu_surface_width || height != wgpu_surface_height)
ResizeSurface(width, height);